Qt 5.8 | Qt Bluetooth | Bluetooth QML Ping Pong example | Board.qml Example File

Qt 5.8.0 Reference Documentation

# Board.qml Example File

pingpong/assets/Board.qml

      /***************************************************************************
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      ** Copyright (C) 2014 BlackBerry Limited. All rights reserved.
      ** Contact: http://www.qt.io/licensing/
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      ** This file is part of the examples of the QtBluetooth module of the Qt Toolkit.
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      import QtQuick 2.0
      import QtQuick.Window 2.1

      Rectangle {
          id: board
          width: 600
          height: 300

          // 1 - server role; left pedal
          // 2 - client role; right pedal
          property int roleSide: pingPong.role
          onRoleSideChanged: {
              if (pingPong.role == 1) {
                  rightMouse.opacity = 0.7
                  rightMouse.enabled = false
              }
              else if (pingPong.role == 2) {
                  leftMouse.opacity = 0.7
                  leftMouse.enabled = false
              }
          }

          property bool deviceMessage: pingPong.showDialog
          onDeviceMessageChanged: {
              if (pingPong.showDialog) {
                  info.visible = true;
                  board.opacity = 0.5;
              } else {
                  info.visible = false;
                  board.opacity = 1;
              }
          }

          // Left pedal - server role
          Rectangle {
              id: leftblock
              y: (parent.height/2)
              width: (parent.width/27)
              height: (parent.height/5)
              anchors.left: parent.left
              color: "#363636"
              radius: 10

              MouseArea {
                  id: leftMouse
                  anchors.fill: parent
                  acceptedButtons: Qt.LeftButton
                  drag.target: leftblock
                  drag.axis: Drag.YAxis
                  drag.minimumY: 0
                  drag.maximumY: (board.height - leftblock.height)
              }
          }

          // Right pedal - client role
          Rectangle {
              id: rightblock
              y: (parent.height/2)
              width: (parent.width/27)
              height: (parent.height/5)
              anchors.right: parent.right
              color: "#363636"
              radius: 10

              MouseArea {
                  id: rightMouse
                  anchors.fill: parent
                  acceptedButtons: Qt.LeftButton
                  drag.target: rightblock
                  drag.axis: Drag.YAxis
                  drag.minimumY: 0
                  drag.maximumY: (board.height - rightblock.height)
              }
          }

          property double leftBlockY: leftblock.y
          onLeftBlockYChanged: pingPong.updateLeftBlock(leftblock.y)

          property double leftBlockUpdate: pingPong.leftBlockY
          onLeftBlockUpdateChanged: leftblock.y = pingPong.leftBlockY

          property double rightBlockY: rightblock.y
          onRightBlockYChanged: pingPong.updateRightBlock(rightblock.y)

          property double rightBlockUpdate: pingPong.rightBlockY
          onRightBlockUpdateChanged: rightblock.y = pingPong.rightBlockY

          Rectangle {
              id: splitter
              color: "#363636"
              anchors.horizontalCenter: parent.horizontalCenter
              height: parent.height
              width: parent.width/100
          }

          Text {
              id: leftResult
              text: pingPong.leftResult
              font.bold: true
              font.pixelSize: 30
              anchors.right: splitter.left
              anchors.top: parent.top
              anchors.margins: 15
          }

          Text {
              id: rightResult
              text: pingPong.rightResult
              font.bold: true
              font.pixelSize: 30
              anchors.left: splitter.right
              anchors.top: parent.top
              anchors.margins: 15
          }

          Rectangle {
              id: ball
              width: leftblock.width/2
              height: leftblock.width/2
              radius: width
              color: "#363636"
              x: pingPong.ballX
              y: pingPong.ballY

              SequentialAnimation {
                  running: true
                  NumberAnimation { target: ball; property: "x"; duration: 50 }
                  NumberAnimation { target: ball; property: "y"; duration: 50 }
              }
          }

          Component.onCompleted: {
              if (menulist.height == Screen.height && menulist.width == Screen.width)
                  pingPong.setSize(Screen.width, Screen.height)
              else
                  pingPong.setSize(board.width, board.height)
              pingPong.updateLeftBlock(leftblock.y)
              pingPong.updateRightBlock(rightblock.y)
          }
      }